Answer:
Mary bought the phone for 1350
Explanation:
The price mary bought the phone shall 100%
$325 is 24% of the price which she bought it.
So if $325 is equal to 24% , what shall 100 percent represent?
In order to find the answer to this, we cross multiply as follows;
24% = $325
100% = ?
cross multiply the above to get,
( 325 * 100 ) / 24
The abouve gives us the answer 1350
So 1350 is the original buying price of the phone.